You get the griddler at the point it was after 4), but instead old applet gave you what was saved in 3) (which I understand is the correct behaviour). It is frustrating, because it destroys the ability to save the puzzle before starting to guess so you can return to a safe point if your guesses were wrong.

Other than that, the new applet is awesome. It took little time to get used to, and the improvements are great. I love most the ability to clear whole rectangles, and the ability to make drawing rectangles (instead of lines) the default. Good work!